<template>
	<view class="my-settle-container">
		<!-- 全选 -->
		<label class="radio" @click="changeAllState">
			<radio color="#c00000" :checked="isFullCheck" /><text>全选</text>
		</label>
		<!-- 合计 -->
		<view class="amount-box">
			合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
		</view>
		<!-- 结算按钮 -->
		<view class="btn-settle" @click="settlement">
			结算({{checkedCount}})
		</view>
	</view>
</template>

<script>
	export default {
		name: "my-settle",
		data() {
			return {
				// 倒计时秒数
				seconds: 3,
				timer: null,
			};
		},
		computed: {
			checkedCount() {
				return this.$store.getters.checkedCount
			},
			// 判断是否全选
			isFullCheck() {
				return this.$store.getters.checkedCount === this.$store.getters.total
			},
			// 计算勾选商品的价格
			checkedGoodsAmount() {
				return this.$store.getters.checkedGoodsAmount
			},
			cart() {
				return this.$store.state.Cart.cart
			}
		},
		methods: {
			// 更新全选按钮的状态
			changeAllState() {
				this.$store.commit('updateAllGoodsState', !this.isFullCheck)
			},
			// 结算按钮事件
			settlement() {
				if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
				if (!this.$store.getters.addstr) return uni.$showMsg('请选择收货地址！')
				// if (!this.$store.state.User.token) return uni.$showMsg('请选登录！')
				if (!this.$store.state.User.token) return this.delayNavigate()
				// 结算订单
				this.payOrder()

			},
			// 创建结算订单
			async payOrder() {
				// 1.组织订单的信息对象
				const orderInfo = {
					order_price: this.checkedGoodsAmount,
					consignee_addr: this.addstr,
					goods: this.cart.filter(x => x.goods_state).map(x => ({
						goods_id: x.goods_id,
						goods_number: x.goods_count,
						goods_price: x.goods_price
					}))
				}
				// 2.发起请求创建订单
				const { data: res } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				// 3.得到服务器的订单编号
				console.log(res);
				if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
				const orderNumber = res.message.order_number

				// 发起订单预支付
				// 2.1发起请求获取订单支付信息
				const { data: res1 } = await uni.$http.post(
					'/api/public/v1/my/orders/req_unifiedorder', { order_number: orderNumber })
				// 2.2预支付订单生成失败
				if (res1.meta.status !== 200) return uni.$showMsg('预支付订单生成失败！')
				// 2.3得到订单支付相关的参数
				const payInfo = res1.message.pay
				console.log(payInfo);

				// 发起微信支付
				// 3.1调用uni.requestPayment() 发起微信支付
				const [err, succ] = uni.requestPayment(payInfo)
				// 3.2未完成支付
				if (err) return uni.$showMsg('订单未支付！')
				// 3.3完成了支付
				const { data: res2 } = await uni.$http.post(
					'/api/public/v1/my/orders/chkOrder', { order_number: orderNumber })
				// 3.4检测到订单
				if (res2.meta.status !== 200) return uni.$showMsg('订单未支付！')
				uni.showToast({
					icon: 'success',
					title: '订单支付完成！'
				})
			},
			// 展现倒计时效果
			showTip(n) {
				uni.showToast({
					icon: 'none',
					title: '请先登录再结算！' + n + '秒之后自动跳转到登录页',
					mask: true,
					duration: 1500
				})
			},
			// 延时导航到my页面
			delayNavigate() {
				this.seconds = 3
				this.showTip(this.seconds)

				this.timer = setInterval(() => {
					if (this.seconds <= 0) {
						clearInterval(this.timer)
						uni.switchTab({
							url: '/pages/my/my',
							success: () => {
								this.$store.commit('updateRedirectInfo', {
									openType: 'switchTab',
									from: '/pages/cart/cart'
								})
							}
						})
						return
					}
					this.showTip(this.seconds--)
				}, 1000)
			}

		}
	}
</script>

<style lang="scss">
	.my-settle-container {
		position: fixed;
		bottom: 0;
		left: 0;
		height: 50px;
		width: 100%;
		// background-color: aqua;
		display: flex;
		justify-content: space-between;
		align-items: center;
		font-size: 14px;
		padding-left: 5px;

		.radio {
			display: flex;
			align-items: center;
		}

		.amount-box {
			.amount {
				color: #c00000;
				font-weight: bold;
			}
		}

		.btn-settle {
			background-color: #c00000;
			height: 100%;
			color: white;
			line-height: 50px;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}
	}
</style>
